New answers tagged mapserver
You could set up a Web Processing Service (WPS) with Zoo-project.org and GRASS GIS. For pointers, see http://grasswiki.osgeo.org/wiki/Interpolation - "Reinterpolation of 'sparse' (scattered points or lines) maps" and also http://grasswiki.osgeo.org/wiki/WPS. QGIS offers a WPS client which you can then run to use your WPS interpolation service.
Step-by-step for GeoServer. Note: As @michal-mackiewicz writes, the WPS extension for GeoServer must be installed. Acquire some point data, for example Natural Earth populated places http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_populated_places.zip Import data into Postgis for example with ogr2ogr ogr2ogr ...
From a clean Ubuntu 12.04 Precise install I was able to get it to work with this: echo 'deb http://ppa.launchpad.net/ubuntugis/ppa/ubuntu precise main' | sudo tee -a /etc/apt/sources.list echo 'deb-src http://ppa.launchpad.net/ubuntugis/ppa/ubuntu precise main' | sudo tee -a /etc/apt/sources.list sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ...
Turns out it is as easy as this: MIMETYPE "application/json; subtype=geojson; charset=utf-8" Without the setting, no content encoding is returned by the server.
Thinking that you need heat maps rendered on the fly, I would go for these options instead: Leaflet: http://www.patrick-wied.at/static/heatmapjs/example-heatmap-leaflet.html OpenLayers: http://www.websitedev.de/temp/openlayers-heatmap-layer.html Both LL and OL: http://www.patrick-wied.at/static/heatmapjs/examples.html Some on-the-fly examples: ...
Geoserver can render a heatmap from vector points using Rendering Transformations. For this feature to work, you will have to install WPS Extension (but WPS service doesn't need to be enabled).
How about using GDAL_Grid? Just pass the arguments over to GDAL and return the raster file or render it in the web browser. It does IDW, Nearest neighbor, and averaging and has a robust set of input parameters.
With MapServer the pixel value of a raster layer that should be interpreted as "nodata" and which should therefore be transparent is defined in the LAYER section of mapfile with the OFFSITE parameter. This is explained in MapServer documention at http://mapserver.org/mapfile/layer.html?highlight=offsite%20raster.
The problem happened to be caused by my geospatial data.
Expressions in MapServer are rather messy from users point of view even the documentation at http://www.mapserver.org/mapfile/expressions.html may feel fine for MapServer developers. What user must know is that datatypes matter and syntax is different for numbers and strings. For strings both the attribute name and its value must be quoted EXPRESSION ...
Installing PostGIS 2.1 and PostgreSQL 9.3 on Ubuntu 12.04 etc. from the PostgreSQL Apt Repository can be found here: http://trac.osgeo.org/postgis/wiki/UsersWikiPostGIS21UbuntuPGSQL93Apt
In order to install the MapServer in Ubuntu 14.04 after you have installed Apache2, it is good to install php5: sudo apt-get install php5 After that you can install the available in the repositories version of the MapServer by executing: sudo apt-get install cgi-mapserver mapserver-bin php5-mapscript However, the available version in the Ubuntu ...
It's been a long time since I last compiled MapServer, but usually all you had to do was: ./configure ./make ./make install 'configure' basically evaluates what libraries are installed on your machine and creates a 'make file'. 'Make' then compiles the mapserv executable. To serve shapefiles and tifs I think you need the gdal library, so you may have to ...
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